Question about 2000 Toyota Land Cruiser

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Have refitted head but still some noise , can I adjust tappets in situ

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That is the only way you can adjust them

Posted on Oct 14, 2009

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Remeasured all clearances located the tappets that had too much clearance and then removed incorrect shim and replaced with thicker shim which gave correct clearance.

Posted on Oct 03, 2009

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Kia carens problems


Tappets......... perhaps is what your friend said. The tappets are part of the engine inlet and exhaust valve set up. Most tappets are self adjusting in modern motors, (Hydraulic).
The old fashioned tappets are manually adjusted during regular car servicing. This happens at set intervals, for instance every 20,000 miles.
Inlet valves allow air and fuel into the engine and exhaust valves let the burnt fuel and air out.
Tappets are fitted between the inlet and exhaust valves, they ensure that the valves open on time and more importantly close properly. If the tappet happened to be badly adjusted and did not let the valve close properly then damage to the valve and cylinder head can happen by burning.
If you have a significant power loss I would be surprised to find that the just tappets/valves were to blame.

Jan 26, 2014 | Cars & Trucks

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I have a 2002 Subaru Legacy GT Limited. At 80,000 miles I had to replace head gasket, timing belt and water pump. Now at 185000 miles the engine seems to be making a lot more noise, more it seems when I...


I'm making a guess that if this is a noise that gets better (but doesn't go away) once the car has warmed up, you probably have one or more tappets that are out of adjustment. I have a feeling that they are hydraulic tappets on this vehicle. You are going to have to either try to trace the offending ones or swap out the lot if they are hydraulic.

Jun 28, 2011 | 2002 Subaru Legacy

1 Answer

Hi We have a Horrible rattling Noise from Beety Its been advised Tappets are needing done What does this involve & Can A Dealer In Central Scotland Be advised What damage? can I do by contiuing to...


The tappets are essentially little levers that make the valves move up an down to allow fuel and air to enter your cylinder and exhaust to exit the cylinder (essentially connect the valve to the cam shaft). The tappets may be adjusted by screws, shims or even self-adjusting hydraulic lifters.

The risk is that you will damage the valve seat (where the valve contacts the cylinder head to close the cylinder area during compression and combustion).

A dealer should be able to adjust them for about 150 quid if they are not the self-adjusting hydraulic type. If self-adjusting feature is broken, then price will be higher..

Jun 07, 2011 | 1998 Volkswagen Beetle

1 Answer

06 A6 pet 2.0T very loud engine noise at bulk-head side of rocker


ur car uses hydrolic lifters instead of tappets but they sound the same when faulty. most likely a 'sticky' lifter. very expensive to change.

Jun 02, 2010 | 2006 Audi A6

2 Answers

Can you set valve clearances on a 1997 clio 1.2 engine.my engine sounds as if the tappets are noisey.


The tappet clearence should be in the owners handbook but it's a bit early a tappet noise from the engine (2006) ! Check oil level and change if it's overdue a service is definately worth a look ! Good luck

Apr 16, 2010 | 2006 Renault Le Car

1 Answer

1998 ford expadition ticking noise ,sound like valve spring broke slightly rough idel loss of power. oil pressure good every thing seems fine.


have your engine valve tappets adjusted to its specified adjustment by a competent mechanic then if the noise is still there then you need to have the engine timing checked. if these doesnt solve the problem then you need to pulldown the cylinder head to inspect the camshaft condition...

Apr 07, 2010 | 1998 Ford Expedition

1 Answer

I have a 94' Isuzu rodeo with a fast tap


alot of the 4clys had ajustable tappets that might need adjusting
V6 have tappets adjusted also but are shims on top of bucket over valve spring, this is hard to do as you may need to change shims to get correct valve clearances suggest dealer to do.
if the noise comes in and out while maintaining 1500-2000rpm when stationary it is possibly worn valve guides which is common on high km vehicle.(head repairs)

Feb 16, 2010 | 1998 Isuzu Rodeo

2 Answers

Adjust tappets


Hi,
The method of adjusting the tappets is the same on most engines that don't have hydraulic tappets.
The gap between rocker arm pad and the top of the valve stem is important for several reasons - to allow for expansion of the metal, to ensure that the valve is fully closed when needed, and to ensure the smooth running/timing of the engine.


The rocker cover gasket or oil filler cap leak eventually over a period of time and the top of the engine gets in a right mess, like the one shown here.
Remove the filler (series have a 7/16" bolt in the side of the cover to retain the filler)
The heater hoses are held by one of the three acorn nuts that hold the rocker cover on. Remove the center nut, and then slacken the 10mm pinch bolt enough for the pipe support to be removed.

Remove the other two acorn nuts and alloy washers, then the rocker cover will lift away.
Each tappet should have a locknut and slotted thread - you will need a 13mm ring spanner and blade screwdriver.

Starting at the front of the engine - turn the crankshaft by way of the crank bolt until No2 valve is open. The camshaft lobe for No1 is now out of the way and the tappet for it can be adjusted. Undo the locknut a couple of turns - if the threaded part turns as well, then keep it still with a screwdriver.
Insert the right thickness blade in the gap between the rocker pad and top of the valve stem and turn the tappet thread until the blade is slightly pinched. Keep the screwdriver dead still and tighten the locknut.
You may find that the tappet gap will close too much when you tighten the locknut. If that happens, then re-set the gap, allowing for this. Work through all 8-tappets, making sure that you set the correct gap for the valve - inlet or exhaust. Once done - clean around the top of the head, the gasket faces, and the rocker cover inside and out. Sticky gaskets are very handy.
Refit the cover, use new alloy washers on the three studs, and re-attach the heater hose clamp.
For pictures you can refer to: http://forums.lr4x4.com/index.php?showtopic=8023

Thank You for contacting Fixya.com

Aug 03, 2009 | 1996 Land Rover Discovery

2 Answers

Tappet clicks come & go


the go away because of heat expansion-
check for low oil and then have the tappets adjusted

Apr 04, 2009 | 2004 Mitsubishi Lancer Evolution

5 Answers

1995 isuzu Rodeo engine noise


valve guides worn and tappet adjustment required, can check tappet adjustment first to see slightly better before removing heads and getting valve guides repaired/replaced on heads common problem
if raise revs to 1500-2000rpm and hold does clatter come and go come and go (valve guides) if there all the time tappet clearance issue
if there only under load (1st rev up) for a couple of times then stops possible big end bearing
all these are common for this engine

Mar 06, 2009 | 1991 Isuzu Rodeo

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